The New York Times's live updates follow the recovery from Friday's Federal Aviation Administration ground stop, which halted flights nationwide after a communications outage and left thousands of passengers stranded, with more than 8,200 flights canceled, delays rippling to London Heathrow, and travelers still scrambling on Saturday. Officials traded blame: Sean Duffy faulted Congress for underfunding air traffic upgrades, Markwayne Mullin cited technology upgrades overwhelming the communication system, and Hakeem Jeffries called it the latest failure of the Trump administration's leadership.